Suppressed fusion cross section for neutron halo nuclei

摘要

Fusion reactions of neutron-halo nuclei are investigated theoretically with a three-body model. The time-dependent wave-packet method is used to solve the three-body Schrodinger equation. The halo neutron behaves as a spectator during the Coulomb dissociation process of the projectile. The fusion cross sections of Be-11-Bi-209 and He-6-U-238 are calculated and are compared with measurements. Our calculation indicates that the fusion cross section is slightly hindered by the presence of weakly bound neutrons. (c) 2006 Elsevier B.V. All rights reserved.